<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>demo3-1</title>
    <script src="./vue.js"></script>
</head>

<body>
    <div id="app">
        <div>
            <h3 v-bind:title="title">切换图片边框</h3>
            <img v-bind:src="img" width="100" height="100" v-bind:class="{active:isActive}">
        </div>
        <p v-bind:style="{color:textColor,fontSize:fontSize + 'px'}">This is a paragraph.</p>
        <button @click="toggleActive">切换</button>
    </div>
    <script>
        const comApp = Vue.createApp({
            data() {
                return {
                    title: "./logo.png",
                    textColor: 'red',
                    fontSize: 16,
                    isActive: false
                }
            },
            methods: {
                toggleActive() {
                    this.isActive = !this.isActive;
                }
            },
        }).mount('#app')
    </script>
</body>

</html>